baber/WOPTO huggingface dataset:
Patent GB-1230176-A (GB)
IPC: C07F7/18
Filed: 1968-04-25
Abstract: 1,230,176. Gelling alkali metal silicates. SOC. INDUSTRIELLE DES SILICONES. 25 April, 1968 [26 April, 1967], No. 19690/68. Heading C1A. [Also in Division E1]  Aqueous solutions of alkali metal silicates are gelled to form silica gel by bringing into contact with at least one gelling agent consisting of a diol halohydrin and/or at least one substance which can liberate a diol halohydrin by hydrolysis. The hydrolysable derivative may be an ester of a halohydrin, e.g. an acetate, in particular #-chloro-ethyl acetate or a silicon compound of the type R n Si(OR<SP>1</SP>) 4 -n where n = 0- 3; R is alkyl, aryl, alkoxy, aryloxy, alkylaryloxy or aralkoxy radical, or Cl or H; R<SP>1</SP> is a chlorine substituted alkyl radical. R is preferably methyl and R<SP>1</SP> a chloro ethyl radical. Preferably, aqueous sodium silicate is used with a specific gravity of 1À2-1À45 and a SiO 2 /Na 2 O molar ratio of 3À3-3À9. The gelling agent may be diluted andis preferably present in an amount of 30% wt. less than that of the silicate used. It is preferable to have the reagents present in stoichiometric amounts. An emulsifier and/or an inert filler may be added to the reaction mixture. The process may be used in the consolidation of soils (see Division E1).
Patent GB-1232251-A (GB)
IPC: B23Q5/32
Filed: 1968-08-29
Abstract: 1,232,251. Portable nut runners. MOHAWK DESIGNERS Inc. 29 Aug., 1968 [16 Nov., 1967], No. 41235/68. Heading B3N. A power tool comprises a spindle 18, which is both rotatable by a fluid-actuated motor M and slidable axially by a fluid-actuated piston 141 in a chamber 130 of housing 12 and has at one end a portion 134 for mounting a workhead and at the other end a ball race 148 or other means connecting the spindle for axial movement with, but rotation relative to, the piston 141. The piston 141 is slidable in the housing and the reversible motor M rotates the splined spindle 18 through the internal splines of an axially fixed spindle embracing gear 116, a meshing gear 108 and two-stage planetary reduction gearing R. The spindle is retracted by a spring 158 in the housing 12. Air is supplied from a pair of three-way valves or a four-way valve to one of two pairs of inlets (40), (46) and (41), (47), Figs. 3, 4A (not shown), to rotate the motor in one or other sense and also from this one inlet through a chamber (42), displacing a ball valve (54) to cut off the passage to the other inlet and passages 52, 167 and 166 (Fig. 2) to the rear of the piston 141. In a development (Fig. 5, not shown), an adjustable stop (226) is provided on the external extension of the piston which contacts a valve (200) operative to reverse the motor when the spindle has advanced a predetermined distance.
Patent GB-1233167-A (GB)
IPC: C25B3/23
Filed: 1969-02-07
Abstract: 1,233,167. Olefine oxides. PULLMAN Inc. 7 Feb., 1969, No. 6914/69. Heading C2C. [Also in Division C7] An oxide derivative of an olefinic compound is prepared by subjecting an aqueous electrolyte in an electrochemical cell having anodic and cathodic surfaces to the action of an electric current under conditions such that molecular or nascent oxygen is formed at the anodic surface, introducing the olefinic compound into the electrolyte so that it is contacted with the oxygen, the aqueous electrolyte being maintained in the liquid phase at a temperature of at least 75 F., and withdrawing effluent from the cell containing the oxide derivative. The process may be carried out in the presence of a catalyst, e.g. silver, in the vicinity of the anodic surface. Among olefinic compounds which may be converted to their oxides by the process are ethylene, propylene, butylenes, pentenes, hexenes, 4 - ethyl - 2 - hexene, tetradecylene, cyclopentene, cyclohexene, diallyl, allene, butadiene isoprene, 2,3-dimethyl butadiene, pentadiene, allyl chloride, methyl styrene, styrene and stilbene.
Patent GB-1233239-A (GB)
IPC: A61F13/15
Filed: 1968-12-09
Abstract: 1,233,239. Diapers. RIEGEL TEXTILE CORP. 9 Dec., 1968, No. 58457/68. Heading A3V. [Also in Division A5] A sanitary product such as a diaper (20, Fig. 3) comprises a soft fluid-permeable wrapper (12, Fig. 1, and 22, Fig. 3) composed of interbonded, flat, aerated regenerated cellulose fibres and an insert of fibrous absorbent material (14, Fig. 2, and 24, Fig. 4) the fibres of which are impregnated with a surfactant catronic long-chain alkyl compound having a straight chain structure of at least 12 carbon atoms. The wrapper (12 or 22) may cover only the body contacting side of the diaper (20) and a moisture impervious sheet may be used on the other side.
Patent GB-1239243-A (GB)
IPC: H01J31/26
Filed: 1968-09-17
Abstract: 1,239,243. Photo-electric detectors; semiconductor devices. ENGLISH ELECTRIC VALVE CO. Ltd. 14 July, 1967 [17 Sept., 1967], No. 44121/68. Headings H1D and H1K. [Also in Divisions H3-H5] An image pick-up tube combines a mosaic target having a semi-conductor substrate 1 on which an image is projected and which is preferably of P-type material such as boron-doped silicon, a mosaic of diodes preferably formed of regions 2 of N-type conductivity but possibly formed of metal, and means for scanning the diode side of the target with a light spot to generate photo-electrons which are collected by a transparent electrode adjacent the target, thereby generating video signals in the substrate. The regions 2 may be formed by diffusion of phosphorus or by ion-implantation by high energy bombardment, and the substrate should be coated with insulation 4 of silicon dioxide or nitride except over the diode regions, and a photo-emissive layer 3 is preferably deposited over at least the diode regions 2; if it covers the whole target, as shown, it must have a high lateral resistance to prevent leakage between the diodes. The collector electrode is preferably a coating of SnO 2  on the envelope and connection is made to the substrate through a P + region extending round the edge of it. In operation the collector may be earthed and the substrate maintained at - 10 volts.
Patent GB-1252106-A (GB)
IPC: C08G63/86
Filed: 1970-06-18
Abstract: 1,252,106. Polyethylene terephthalate. M & T CHEMICALS Ltd. 18 June, 1970 [19 June, 1969], No. 29699/70. Heading C3R. Polyethylene terephthalate is prepared by heating a mixture of terephthalic acid and ethylene glycol to at least 260 C. under superatmospheric pressure and thereafter heating the mixture to at least 260 C. under subatmospheric pressure in the presence of antimony pentoxide catalyst. The catalyst may be present throughout the whole process and the process may be continuous.
Patent GB-1252300-A (GB)
IPC: B65G19/18
Filed: 1969-01-16
Abstract: 1,252,300. Endless conveyers. S. F. JOHNSON. 16 Jan., 1969 [19 Jan., 1968], No. 2594/69. Heading B8A. A portable conveyer for use in mines comprises a plurality of interconnected sections each with upstanding walls 17, a central dividing plate 18 and a base-plate 16 to define substantially rectangular troughs for the forward and return paths of an endless conveyer. The ends of the walls 17 and the plates 18 of adjacent sections are connected by spring steel plates 20, 21 rigidly secured to one of the sections and slidingly coupled to the other of the adjacent sections, whilst the base-plates 16 of adjacent sections are pivotally connected for movement about a vertical axis and one of the ends 24 of the base-plates is of such a shape as to accommodate lateral movement of the spring plates 20, 21 when adjacent sections pivot relative to one another. The endless conveyer 26 comprises a plurality of substantially rectangular scrapers 25 linked together by means of lengths of wire rope 26 with ball heads 27 for releasable engagement in sockets 28 on the flights 25. The flights may have wear resistant ends and may be circular in cross section. The conveyer is tensioned by hydraulic means (not shown) acting on one or both of the end sprockets (32), (40) of the conveyer and each end of the conveyer may be anchored by a self-advancing hydraulic chock (36) or alternatively the trailing section may be anchored by a cable (43) coupled to a winch (44). The forward and return paths of the conveyer may be located one above the other.
Patent GB-1252612-A (GB)
IPC: G01B9/021
Filed: 1969-08-26
Abstract: 1,252,612. Holography. INTERNATIONAL BUSINESS MACHINES CORP. Aug.26, 1969 [Sept. 9, 1968], No.42413/69. Heading G2J. Reversed shear interferograms (defined) are made by first forming an image hologram 20 of the object with an angular separation S between object and reference beams and illuminating the hologram to simultaneously form in the same plane 317 and along the same optical axis an orthoscopic and a pseudoscopic image, said images being rotated relative to each other to be oriented in the same direction and interacting in plane 317 (a photographic emulsion) to produce an interference pattern indicative of the differences between the two images. Preferably the image hologram is illuminated by two beams 300A, 300B at an angle 2S. A mirror 322 is rotatable about axis Y (shown) to form a fringe pattern which represents the variation in phase of object 20. In an alternative method of forming the image hologram 420 Fig. 4, a diffraction grating 415 is located behind object 418 to produce a diffraction pattern, and a filter 421 stops all but a first order and the centre of the zero order beams which interfere to form hologram 420. In re-illuminating the hologram a filter 521 Fig. 5 passes both first order beams to form the orthoscopic and pseudoscopic images which interact in plane 517. To make the fringe pattern, e.g. 517, represent more than twice the phase of the object a second image hologram is formed by developing the initial image hologram 420 non-linearly to enable it to generate higher diffraction orders when it is illuminated with a single beam e. g. to form first diffraction orders which are caused to interfere to form the second image hologram. This hologram is then reilluminated with second order diffraction beams only. If tertiary or quaternary image holograms &c. are formed using second or third orders the ultimate interference pattern will represent 6, 8 times &c. the phase of the original object. Image holograms are not essential. Thus if the hologram is formed using a Fraunhofer diffraction pattern of the object, in the reconstituting phase a Fourier transformation is necessary between the hologram and the plane where the interferogram is formed and displayed.
Patent GB-1256484-A (GB)
IPC: B62B5/02
Filed: 1970-03-20
Abstract: 1,256,484. Conveyer systems. INVENTIO A.G. 20 March, 1970 [24 March, 1969], No. 13491/70. Heading B7L. A conveyer arrangement for shopping trollies 4 includes a track 1 which comprises a conveyer section 1.1 longitudinally extending between first and second storeys 2 and 3 respectively of a store, parallel pairs of guide rails 18, 21 and 19, 20 respectively on the track in which swivelling wheels 4.1 of the trollies 4 run during transit between the first and second storeys 2 and 3 respectively, an endless drive chain 5 traversing the track 1, the chain 5 having spaced entraining pins 15 and being covered by casings 16 which define a channel 17 extending in the longitudinal direction of the conveyer section 1.1 and through which pin-engaging forked members 4.2 depending from the trollies 4 extend into the path of the pins 15 of the chain 5. The guide rails 18, 21 and 19, 20 are located side by side in a common plane in the entrance and exit sections 1.2 and 1.3 respectively, which are slightly downwardly inclined as shown. On the conveyer section 1.1, the pair of outside rails 18, 21 which guide the rear pair of wheels 4.1 are displaced in spaced parallel relationship to the inner pair of rails 19, 20 which guide the front pair of wheels 4.1, so that the trolly 4 is maintained in an approximately horizontal position on the entire track 1. The guide rails 18, 19, 20, 21 have a basic channel-shaped cross-section which is modified to a part-box shape by flanges 18.1, 19.1, 20.1 and 21.1 respectively which are arranged to extend above wheel axle extensions 4.12 of wheel axles 4.11 of the trollies 4 with a clearance therebetween. Strips 22 of noise-damping resilient material are placed on the end of the flanges. A spring-biased back stop 24 is provided in the entrance section 1.2 to prevent a trolly 4, which has entered the section 1.1 and has not immediately been taken up by an entraining pin 15, from running back into the section 1.2, as described with reference to Fig. 4 (not shown).
Patent GB-1256842-A (GB)
IPC: C10G67/04
Filed: 1970-05-12
Abstract: 1,256,842. Refining of lubricating oils. TEXACO DEVELOPMENT CORP. 12 May, 1970 [22 May, 1969], No. 22926/70. Heading C5E. A process for producing lubricating oils comprising vacuum distilling crude petroleum oil to yield a virgin lubricating oil distillate and a still residue containing asphalt, which residue is catalytically hydrocracked to produce a fraction boiling in the lubricating oil range, and where this fraction is batch or continuously solvent refined to produce a lubricating oil of improved viscosity index. The crude oil has a Watson characterization factor of at least 11À5. The catalyst comprises a Group VIII or Group VII metal or its compounds, preferably Ni and Mo, supported on a metal oxide refractory containing at least 2À0 weight per cent, and having a pore volume of at least 0À3 c.c./g. and a surface area of at least 100 m.<SP>2</SP>/g. The cracking is effected at a temperature between 650‹ and 900‹ F., at a pressure between 500 and 5000 p.s.i.g. The solvent for refining is preferably N- methyl-2-pyrrolidone, and such refining increases the viscosity index over the hydrocracked residuum, by 40 units. The viscosity index of the final product is at least equal to that of the solvent refined lubricating oil derived from a virgin lubricating oil cut from the crude petroleum oil having substantially the same viscosity at 210‹ F. as the final product. The pour point of the oil can be improved by solvent dewaxing.
Patent GB-1257727-A (GB)
IPC: C07C1/02
Filed: 1969-07-08
Abstract: 1,257,727. Nuclear reactor coolants. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 8 July, 1969 [17 July, 1968], No. 34363/69. Heading G6C. Methane is introduced into the carbon dioxide coolant of a graphite-moderated nuclear reactor by preparing hydrogen by the electrolysis of water, mixing this hydrogen with the CO 2 , and passing the mixture over a catalyst (e.g. Ni at 300-400‹ C.) to produce methane. Oxygen produced by the electrolysis may be used to convert CO formed in the coolant into CO 2 . The purpose of the methane is to inhibit reaction of CO 2  with the graphite.
Patent GB-1258209-A (GB)
IPC: B29C48/05
Filed: 1970-05-21
Abstract: 1,258,209. Making curved or tubular net-like structures by extrusion. FMC CORP. 21 May, 1970 [6 Aug., 1969], No. 24576/70. Heading B5B. [Also in Division D1] As shown in Figs. 3 to 5 of the drawing an apparatus for making a curved or a tubular net-like structure by extrusion includes a pair of concentric cylinders 45 and 47, each provided at its lower end with an integral flange 49 and 51, respectively, on which are slidably carried a pair of concentric annular support members 53 and 55. Split rings 57 and 59 are seated within grooves 61 and 63 formed in opposing walls 65 and 67 of the cylinders 45 and 47, respectively, and serve to retain the annular members 53 and 55 against the cylinder flanges. At least one, and preferably both of the members 53 and 55 are capable of rotation. As shown in Fig. 5, gear teeth 69 and gear teeth 73 are formed in the bottom 71 of the member 53 and in the bottom 75 of the member 55 respectively and mesh with gears 79 and 81 respectively. The gears are fixed to shafts 83 and 85 respectively and are intermittently driven by means not shown. Composite nozzles 97, 99 and 101 shown in Fig. 3 are suitable for use in the apparatus of the invention and all include a pair of like extrusion sections 103 each having arcuate walls 105 and 107, and the spacer section 109 having like arcuate walls 111 which mate with the walls 107 of the extrusion sections. Common to each of the different forms of nozzles 97, 99 and 101 is at least one orifice 113 extending through each of the extrusion sections 103. For simplicity all the composite nozzles employed in the apparatus shown in Figs. 4 and 5 are of like size and shape and correspond to nozzles 97 shown in Fig. 3. The nozzles 97 each include flange portions 119 and 121 protruding from the extrusion and spacer sections, respectively, which are adapted to rest upon the top surfaces of the annular members 53 and 55. Each of the nozzles 97 are provided with gear teeth 123 which mesh with ring gears 125 and 127, whereby all the nozzles can be rotated simultaneously in the same direction periodically through an angle of 180 degrees or a multiple thereof. The ring gears 125 and 127 are rotated in sequence by gears 133 and 135 fixed to shafts 137 and 139. A flowable strandforming material, such as a molten thermoplastic material, e.g. polyamides, polyesters, polyvinyl chloride and polyolefins, or cellulose acetate, natural or synthetic rubber, viscose, cuprammonium cellulose or carboxymethyl cellulose, is delivered under pressure through the conduit 141 into the annular chamber between the concentric cylinders 45 and 47 and is extruded through the nozzle orifices 113 to form continuous molten streams 143 which are solidified in a liquid 145 which may be cool water. The annular members 53 and 55 are held stationary during the turning of the nozzle 97 and, once such turning is completed, the nozzles remain stationary while relative movement is effected between the annular members 53 and 55. The extruded streams of strand-forming material may be solidified before or after they have contacted each other.
Patent GB-1264235-A (GB)
IPC: A45D42/18
Filed: 1969-10-24
Abstract: 1,264,235. Electric battery lamps. MR PAUL Inc. 24 Oct., 1969 [28 Oct., 1968], No. 52333/69. Heading F4R. [Also in Divisions A4 and G2] Three mirrors 11, 12, 14 are arranged with the included angles 30, 31 (Fig. 2) in the range 98 to 122 degrees to provide an observer with three views of her eye from different vertical angles. Translucent side panels 21, 22 (Fig. 1) and battery-operated lamps (24, 25, Fig. 5, not shown) are incorporated into a housing to provide illumination of the eye.
Patent GB-1265190-A (GB)
IPC: C07C51/00
Filed: 1969-11-18
Abstract: 1,265,190. Solutions of potassium 2,4- dichlorophenoxypropionate. FABBENFABRIKEN BAYER A.G. 18 Nov., 1969 [28 Nov., 1968], No. 56372/69. Heading C2C. The invention comprises aqueous solutions having a pH between 7 and 12 and containing at least 600 g. of solute per kg. of solution, at least 50% by weight of the solute being the potassium salt of α-(2,4-dichlorophenoxy) propionic acid and the balance, if any, being the sodium salt of the same acid and the potassium and sodium salts of 2-methyl-4-chlorophenoxyacetic acid. Methods of preparing these solutions are described, the essential feature of these methods being the avoidance of the addition of α-(2,4- dichlorophenoxy) propionic acid to concentrated potassium hydroxide, which leads to a three-component system. Examples are given. The solutions are useful as herbicides, optionally after dilution, and they may contain an emulsifier or dispersing agent to avoid the separation out of the calcium salts of α-(2,4- dichlorophenoxy) propionic acid if hard water is used for dilution.
Patent GB-1266387-A (GB)
IPC: F16H25/22
Filed: 1969-06-27
Abstract: 1,266,387. Screw and nut gearing. SVENSKA KULLAGERFABRIKEN A.B. 27 June, 1969 [28 June, 1968], No. 32739/69. Heading F2Q. A mechanism comprises a screw 1 on which are mounted two nuts 4 each with an independent ball recirculating passage and set of load transferring balls 3, and having at its outward end an external flange 9, the two nuts 4 being encircled by a sleeve 5 of smaller bore than the overall diameter of the flanges which fit into recesses 6 in the sleeve, the sleeves and nuts being adjustably fixed against relative rotation by removable devices (e.g. discs 11 with radial ribs 13 engaging slots 14 in the nuts and sleeve). Relative adjustment of the nuts 4 in the sleeve 5 to take up backlash may be effected either by interchangeable spacers 10, or by one disc 11 comprising outer and inner rings 16, 18 with ribs 13 engaging the sleeve and nut, and having teeth 17, 19 engaging an intermediate ring to thereby give a vernier adjustment.
Patent GB-1288902-A (GB)
IPC: H01L21/00
Filed: 1971-04-06
Abstract: 1288902 Semi-conductor devices VARO Inc 6 April 1971 8912/71 Heading H1K A rectifier stack is formed from a plurality of semi-conductor wafers, each with a P-N junction parallel to the major plane of the wafer, bonded in series relationship, the stack of wafers being mounted on a plate parallel to the plane of the wafers and divided into a plurality of slices by a plurality of parallel cuts normal to the plane of the wafers, each slice then being mounted on its major face on another mounting plate and another set of parallel cuts made perpendicular to both the plane of the wafers and the slice in order to produce a plurality of rectifier studs. The cuts may be made by an abrasive multi-bladed saw. The bonding material may be of soft solder.
Patent GB-1290674-A (GB)
IPC: G01G5/00
Filed: 1969-05-15
Abstract: 1290674 Load-sensing apparatus H R BULLIMORE and L W STEVENS 17 Aug 1970 [15 May 1969] 24735/69 Heading G1W A device for indicating the load on a vehicle axle comprises a closed pneumatic circuit including a flexible pressure varying device and a gauge, the load indication shown on the gauge being dependent on the amount of distention of the flexible member. Preferably each vehicle wheel is provided with a flexible device and the associated gauges are mounted together on a common panel. In one embodiment, Fig.1, the sensor comprises a bellows device 10 having a block 19 fitted with a nipple 20 at one end, and an end-cap 16 through which air may pass into a pipe 11, expansion tank 12, further pipe 13 to a pressure gauge 14 at the other. The device is attached by eye-piece 17 to the vehicle chassis and by eye-piece 24 to the wheel axle. A plunger 18 slidable within the cylinder 10 distends the bellows upon relative movement of the chassis and axle and hence forces air into the pressure measuring part of the system. A shut-off valve 28 is operated by an arm 27 cooperating with a compression spring 26 and diaphragm 25 if the pressure within the bellows exceeds a certain safe value. The bellows type gauge 14 may be replaced by a manometer type of gauge, Figs.2, 3 and 6 (not shown) and the excess pressure safety device may be obtained by means of two telescopic tubes, Fig. 2 (not shown), one of them (34) telescoping into the other (30) against the action of a spring (36) when the safe value is exceeded.
Patent GB-1303082-A (GB)
IPC: H04N3/185
Filed: 1970-04-21
Abstract: 1303082 DC-DC conversion MULLARD Ltd 21 April 1970 19011/70 Heading H2F In a power supply for a TV receiver, an output from the line deflection transistor TR1 is rectified by a diode D 1 which is conductive during the scan period, the resulting voltage being stabilized (e.g. by TR2, TR3), the stabilization being reflected to the primary of the line output transformer T so as to tend to stabilize the supply to the line output stage TR1. As described, the supply voltage to the line deflection transistor TR1 is reduced by a potential divider R9 ... R11 and compared by TR3 with a reference voltage across voltage reference diode D4; the resulting voltage controlling the current in TR2 so as to stabilize both the voltage between terminals 4 and 5 and the supply to the line deflection transistor TR1. In Fig. 3 (not shown) the upper side of R9 is connected to terminal 4. In Fig. 2 (not shown) the base of the voltage regulating transistor is connected to the tapping of a series arrangement of resistor and voltage reference diode connected across terminals 4 and 5. Line deflection coils and EHT circuit are connected to secondary windings (not shown) of transformer T. R2 provides protection against CRT flash-over.